I use my main iMac to serve up my large (600gigs+) library. Since I use the Imac for Logic and want to maximize its speed, cpu etc, I was thinking of getting a mac mini to serve up the library, using my wifi at home (airport extreme, several airport expresses.) And through icloud if I can create a small enough library to use with icloud. Will that work? Is a Mac Mini a good choice for that purpose? What cpu/speed requirements would I need to get? I'm thinking of getting a used one, to save some $ thanks!